Embryos not Employed in The existing cycle could be cryopreserved. Cryopreservation is often reached with vitrification, a speedy freezing approach. Vitrification is believed to avoid cryoinjury by lowering the development of intracellular crystals.[35] All embryos will also be frozen in individuals at risk for ovarian hyperstimulation syndrome (reviewed further in https://www.ivf.com.mx/